CVE-2026-27892 — Unrestricted File Upload
CVE-2026-27892 — FacturaScripts is an open source accounting and invoicing software. In versions prior to 2026, the Library module stores and serves uploaded images byte-for-byte, without stripping EXIF/XMP/IPTC metadata. Any authenticated user who downloaded an image could extract the uploader's em
What This Means For You
- If your environment is affected by CWE-200, CWE-212, review your exposure and prioritize patching based on your environment. Monitor vendor advisories for CVE-2026-27892 updates and patches.
Related ATT&CK Techniques
🛡️ Detection Rules
3 rules · 6 SIEM formats3 detection rules auto-generated for this incident, mapped to MITRE ATT&CK. Sigma YAML is free — export to any SIEM format via the Intel Bot.
FacturaScripts Library Module Unrestricted File Upload — CVE-2026-27892
title: FacturaScripts Library Module Unrestricted File Upload — CVE-2026-27892
id: scw-2026-05-18-ai-1
status: experimental
level: critical
description: |
Detects the specific upload endpoint used by the FacturaScripts Library module for unrestricted file uploads. This rule targets the initial access vector of CVE-2026-27892, where authenticated users can upload files without proper sanitization, potentially leading to PII disclosure via EXIF/XMP/IPTC metadata.
author: SCW Feed Engine (AI-generated)
date: 2026-05-18
references:
- https://shimiscyberworld.com/posts/nvd-CVE-2026-27892/
tags:
- attack.initial_access
- attack.t1190
logsource:
category: webserver
detection:
selection:
cs-uri|contains:
- '/library/upload'
cs-method:
- 'POST'
sc-status:
- '200'
selection_base:
uri|contains:
- '.jpg'
condition: selection AND selection_base
falsepositives:
- Legitimate administrative activity
Source: Shimi's Cyber World · License & reuse
Indicators of Compromise
| ID | Type | Indicator |
|---|---|---|
| CVE-2026-27892 | vulnerability | CVE-2026-27892 |
| CWE-200 | weakness | CWE-200 |
| CWE-212 | weakness | CWE-212 |
Written by SCW Vulnerability Desk
Source & Attribution
| Source Platform | NVD |
| Channel | National Vulnerability Database |
| Published | May 19, 2026 at 01:16 UTC |
This content was curated and summarized by Shimi's Cyber World for informational purposes. It is not copied or republished in full. All intellectual property rights remain with the original author and source.
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